Radeon R9 295X2 and Radeon R9 390X2 - video card comparison
Radeon R9 295X2
Radeon R9 390X2
Architecture
GCN 2.0 (2013−2017)
GCN (2011−2017)
GPU code name
Vesuvius
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Market segment
Desktop
Desktop
Release date
April 2014
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Bus support
PCIe 2.1 x16
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Interface
PCIe 3.0 x16
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Supplementary power connectors
2 x 8-pin
-
Boost clock speed
1018 MHz
1000 MHz
Floating-point performance
2x 5,733 gflops
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Manufacturing process technology
28 nm
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Number of transistors
6,200 million
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Pipelines / CUDA cores
2816
-
Power consumption (TDP)
500 Watt
-
Texture fill rate
179.2
-
Memory type
GDDR5
512
Maximum RAM amount
8 GB
-
Memory bus width
512 Bit
5400 Bit
Memory clock speed
1250 MHz
-
Memory bandwidth
640 GB/s
-
Display Connectors
1x DVI, 4x mini-DisplayPort
-
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
GDDR5
Mantle
-
-
OpenCL
2.0
-
OpenGL
4.6
-
Shader Model
6.3
-
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
-
-
UVD
+
-
ZeroCore
-
-